When trying to access the report I et: CGI::Compile::ROOT::kohadevbox_koha_circ_reserveratios_2epl::reserveratios_2epl(): DBI Exception: DBD::mysql::st execute failed: 'koha_kohadev.reserves.reservedate' isn't in GROUP BY at /usr/share/perl5/CGI/Emulate/PSGI.pm line 30 at /usr/share/perl5/DBIx/Class/Exception.pm line 77 Testing on ktd with sample database.
It has been said to be related to strict mode.
*** This bug has been marked as a duplicate of bug 23360 ***
In case anyone else comes here looking for answers on how to fix this on KTD... the answer is to edit <strict-sql-modes> to 0 in the conf file: /etc/koha/sites/kohadev/koha-conf.xml